Free Printable Diagonal Sudoku (Sudoku X): 12 Puzzles, One Solution Each

12 diagonal sudoku puzzles to print and solve on paper, with all solutions at the end of the page.

Rule

Fill every row, column and 3x3 box with the digits 1 to 9. Both main diagonals (shaded grey) must also hold 1 to 9 once each.

To print, press Ctrl+P in your browser. The print layout puts two puzzles on each page and starts the solutions on a new page.

Each puzzle was checked by the solver and has exactly one solution. These 12 free puzzles are not part of the 300-puzzle book.

12 puzzles

X-001

2	1		6		9	7	4	8
				7		6
	6				2			1
8
3
7	2	5	1	4		3
6		4	5
	3	2				5	9
					6	8	3

X-002

			9	3		8	2	1
8		3						7
			1		4	6
	9		8	1
					5	1
					2
				2	1			8
3	8		5		9		4	2
2			3		8			5

X-003


4			1		5	2	8
	2	1	8				9	7
6		3	5	8	9	4
				7				8
		9	2	1
2			3
7	1					3
	8	6			1	5

X-004

		7	6	3		4
	6	3				2
			8
	3					8	6
5		4
6				7	3
		5	3	6
1	9				8			6
3	8	6	2	9		1		7

X-005

8		7						9
1			9					2
						8	1
	4	9	1	3	6		7
				7			9	4
			5	4	9
9		3						5
6				2	5		3	7
2						1

X-006

		6		9		2	8
5		8				7
	7			4			5
		1	7					5
	6	2	4	5		9
		4			6	1
	9		2	6	5		4
	8		3
	2						9

X-007

		1		3		8	9
				9		5
	9
			4	2	9		5	6
5		6			3	2
			7			1		8
1		5		7			8
		2	9	8
		9			2	3	1

X-008

	3					6	1
	6					4
				3	2
		8				2
9		7		4		3	8
6	2				7		5	4
				7	9			8
5			8			1
		9	5			7	4	2

X-009

2				5	9
6	4	5	8
8							5
		2					9	8
9	8		5		6	3

7	9	8		4		1	2
	5			8		7		9
3					7			5

X-010

	6		8			9	1
1							4	6
2	9				7
	5	2	7			1	6
9		1
8	4			5	3
		5	9	3		6
7		8
		9	5			3

X-011

8	7	4			3			9
2			8			1
		1		2	4	3
		2		3
	9	5					3
		7	2	4				1
	2					4	9
	1			5	7
	4	6				7

X-012

5	6	4	8		1
			4		9	8
	3					1		7
2				1	7	4	5
	7				8			1
	9			4	3
1	2			5				6
3			1				8
								4

Solutions